Condenser and liquid receiver



July 23, 1929. R. L. ALEXANDER I 1,721,654

CONDENSER AND LIQUID RECEIVER Filed April 22, 1927 3 Sheets-Sheet 1 s p ia T L I 1 i I t\) n 1 l I 'V/ \a I I I N\ I I fags.

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UNITED STATES 1,721,654 PATENT OFFICE.

' ROBERT L. ALEXANDER, OF CLINTQN, IOWA, AQSIGNOB TO CLEAR ENGINEER-DIG (X1, A CORPORATION 01' DELAWARE.

CONDENSER AND LIQUID BECEIm Application am April a2, 1927. Serial Io. mass.

This invention relates to a water cooled condenser and liquid receiver for refrigerating apparatus.

It is an object of this invention to provide I a condenser and liquid receiver for refrigerating apparatus adapted to be submerged in a relatively large body of water in a chambered base serving as a support alignln the motor compressor and other parts the refrigeratin apparatus, thus producing a compact and self contained unit.

It is also an object of this invention to rovide a combined condenser and liquid receiver of the class described wherein the liquid receiver will be maintained at a temperature safely below the boiling point of the refrigerant thus preventing re-evaporation of the liquid before it reaches the refrigerating compart-ment.

Other and this invention will be apparent from the disclosures in the specification and the accompanying drawings.

This invention (in a preferred form) is illustrated in the drawings and hereinafter more fully described.

On the drawings: 7

Figure 1 is an elevation of a compressor refrigerating mechanism embodying a condenser and liquid receiver in the base thereof.

Figure 2 is a longitudinal vertical section of the base.

' Figure 3 is a view similar to Figure 2 showingi a slight modification.

igure 4 is a section on the line IVIV of Fi re 3.

s shown on the drawings:

The refrigerating apparatus, shown in Figure 1, as-mounted on the chambered base of this invention, comprises a driving motor '10 coupled directly to a rotary type compressor 11, a fan shroud or ard 12 being shown over the coupling 13. e compressed vapor from the compressor enters a jacket 14 surrounding the water outlet pipe 15 leading from the condenser chamber in the base. From the jacket the compressed vapor normally passes through a four way distributing valve 16 which may be adjusted to reverse the direction of flow of refrigerant and then through a pi 17 leading down to the condenser in the se.

The chambered base 18 of this invention has mounting pads 19 and 20 for the motor 10 andcompressor 11, the base forming an further important objects of oblong chamber 21 closed at the ends by covers 22 and 23, the cover 22 having a water inlet connection 24, the water outlet being through the previously mentioned pipe 15 which is attached to the top of the base at 25.

The pipe 17 conveying the compressed vapor from the compressor enters through a stufling box 26 in the top of the base and is connected to a coil-type condenser 27 which is arranged to drain condensed refrigerant into a liquid receiver or tank 28 connected to the other end 29 of the condenser coil 27. The high pressure liquid line to the evaporator or expansion valve is connected to an outlet pipe 30 leading from the tank 28 through a stufling box 31 in the cover 23, the inner end of the pipe 30 being downwardly turned inside the tank to insure a liquid seal thereat until the tank is nearly empty.

. Figures 3 and 4 show a modification wherein the cooling water in which the condenser 32 and li uid receiver 33 are submerged is contain in a sheet metal container 34 supported beneath a base casting 35 by suitable means such as brackets 36. This construction obviates the necessity of stufling boxes at the connections of the various gas and water pipes to or through the walls of the container. The water inlet is shown at 37, the water outlet at 38, the gas inlet at 39, and the liquid outlet to the low side of the compressor at 40. These pipes may be satisfactorily welded at their junctures with the container 34 due to the sheet metal construe tion of said container.

In operation, as the condenser and the liquid receiver are submerged in cooling water in the base, a much lower temperature is obtained and maintained in both the condenser and receiver as compared to a condenser deliverin into a receiver exposed to the atmosphere, use in the latter case the liquid leaving the condenser ma be below the-atmospheric temperature an would be warmedthereby, causing evaporation and consequent reduction of efliciency in the refrigerating apparatus and condenser. It will thus be seen that I have produced an im roved condenser and liquid receiver moun in the base of a refri ratingapparatus that will improve the e ciency of the apparatus as a whole and reduce the consumstion of cooling enser capacity.

I am aware that many changes may be made, and numerous details of construction no water to obtain the same con denser coil partially enveloping the said liquid receiver, the said sin 1e unit being adapted to be positioned in t e chamber in said base and removable therefrom at either end of the chamber by removing one end cover and inlet and outlet connectlons to the unit.

In testimony whereof I have,hereunto subscribed my name at ClintornClinton County,

owa.

ROBERT L. ALEXANDER. 

